Nathaniel foqst



` UNITED STATES PATENT OEEIcE.

NA'IIIANIEL FO UST, OF LOCK HAVEN, PENNSYLVANIA, ASSIGNOR TO NEIVTONFREDERIOKS, OF SAME PLACE.

TUYERE-IVIACHINE.

SPECIFICATION forming part of Letters Iacent No. 417,164, dated December10, 1889.

Application led May 25, 1889. Serial lIo. 312,134. (No model.) I

10 all whom t may concern' 3e it known that I, NATHANIEL Foisr, acitizen of the United States, residing at Lock Haven, in the county of`Clinton and State of Iennsylvania,l1ave invented certain new and usefulImprovements in rluyere-Machines; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

Figure 1 is a side elevation, partly in section, of the machine. Fig. 2is a horizontal section of Fig. 1 through the Working' parts. In thisvieiv the needles are shown as driven through the clay in thetuyeremold. Fig. 3 represents details showing the casing which fits intothe mold7 and the Wire rods which are placed in the tuyere when removedfrom the mold; Fig. 4, a vertical section of one of the tuyeres. Fig. 5is a detail in longitudinal section, showing the case placed inside themold. with the case inside.

This invention relaties to improvements in machines for making tuyeres;and the novelty consists in the construction of the several parts, theircombination, and the machine as an entirety, all as will now bedescribed, as Well as pointed out in the claims.

In the accompanying drawings, A denotes any suitable framework in whichthe mold Il is adapted te rest and be tilted up and down on thetrunnions I), which have suitable bearings in the upper rails or partsof the frame A. This mold has a cap o and h2 at its respective ends.These caps may be hinged to the mold, as new shown, and be held closedby a catch if; but I do not wish to be limited to any precise details ormeehanism for att-aching the caps in position, it being only essentialthat they shall be so adapted to the mold that it can at either end beeasily opened or closed, as desired. Each of these caps is perforated ato".

The needles Care attached at one end to the head I). They are ofsuitable length to pass entirely through the materia-l in the mold Bwhen the tuyere is being made. They are so fitted into the head I) thattheir opposite ends Will when the needles are moved Fig. (i is across-section of the mold` forward enter 'the openings b" in the caps ofthe mold. This motion, as well as'the return movement, is accomplishedby means of the screws E being turned by the gearing F and pulleys G,thereby moving the head D along the screws in any usual or ordinarymanner.

In operating this machine the cap on the outer end of the mold havingbeen removed or turned back the sheet-metal case II is in- 6o serted, sothat its flaring end iits in the ilarin g end of the mold, and the capthen replaced and secured in position. The mold is then tilted, and thecap at the other or inner end being removed or turned back, clay,cement, 6 5 or any other material of which the tuyere is to be made isput or forced into it. Then the mold has been iilled, the cap isreturned to its place and the mold turned down into its horizontalposition,where it is stopped by 7o the lug b, resting on the top bar ofthe frame A. At this moment the needles are caused to move forward andare made to pass through the perforations in the caps at that end of themold (said perforations acting as guides) and 7 5 also entirely throughthe material in the mold, as above stated. Then the operation has beenfully completed, the needles are Withdrawn. The mold can now be tiltedand the cap at the outer end taken off or turned away, 8o and the easeIl, with the tuyere I inside, is now taken out of the mold, and afterthe wires or rods K, each. of proper size and length to fill one of saidholes, have been placed in the holes i in the tuyere and all of saidholes 85 Iilled it can be set awayfor drying. When p properly dried, thewires are removed and thc tuycre removed from the casing and is readyfor use.

The advantage of using the wires is that 9o in drying the holes will bekept straight and true. rlhis a matter of large importance in this classot' devices, because' it an essential point that the airpassages shallbe as free and unobstructed as possible.

In the detail of pivoting the mold, also of taking out the tuyere fromit, there may be manifold merely mechanical changes over what I havedescribed. The flaring end b5 of the mold may be located opposite-ly towhat roo .is now shown, so that the tuyere can be removed at the otherend of the frame. In

many like minor details Changes may be made without departing from thenature o1' scope of my invention; also, the mold may be used with one orwithout any cap.

5 vliet I claim isl. In combination with the mold, a metal easingadapted to fit into the same, as and l'oi the purposes set forth.

2. The combination of the mold having 1o perforated caps and needlesopemted, ns set forth, with the sheet-metal ense Il, as mid for thepurposes set fol-ih.

the mold B, lin-ving trunnions Z1, and L flaring end b5, caps D and U3,and the ease Il, and l the needles and operative mechanism,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

I 3. The combination of the frame A with I NATHANIEL FOUS'IL B. T.GEARY,

